About Organic

Waste

What is Organic Waste?

“Organic” in Chemistry field: The compound consists of carbon, hydrogen and oxygen etc.

“Organic” in Biology and Environment field: The material comes from the once living units, such as animals, plants and microorganisms.

Organic wastes can refer to the residue of plants, animal and microbes, or waste materials naturally generated from all living things.

The category and source of organic waste

The organic waste can be divided into three categories, which are "Industrial organic waste", "Agriculture organic waste" and "household organic waste". The household part is approximately 10%, the industrial and the agriculture accounts for 40% and 50% respectively. However, the ratio varies according to different

Agriculture

50% Industrial

40%

Household

10%

Source of Organic Waste

economic status in each country. An agriculture country usually gets more volume of agriculture organic waste compared with the other two. On the other hand, a well-developed industrial country, whose industrial organic wastes is much higher.

Regarding household organic wastes, the volume is usually proportional to its population. Each person produces the organic waste directly is approximately 0.5 to 1 kilogram every day. Therefore, the volume can be almost 500 tons each day per million citizens.

The organic waste of agriculture: farming, forestry, fishing and gardening, fruits and vegetables, mushroom, farm, forest, livestock breeding farm, fishery cultivation factory, pig and cow stock farm etc.

The organic wastes of household: food waste from kitchen, institution, army, school, and prison etc.

The organic wastes of industry: Food processing manufacturing industry, brewery, slaughter house, restaurant, market, hospital, hotel, vegetative raw material for medicine, papermaking, sludge, and tannery etc.

Treatment of Organic Waste

Advantage & Disadvantage Analysis

Compost

Treatment Method: Fermentation

Treatment Time: 3-6 months.

End product: Soil Conditioner.

Requirement: Huge site, constantly re-pile (Manpower or Machine).

Disadvantages: Bad smell, space & time, carbon lose.

Landfill

Treatment Method: No treatment

Treatment Time: Several years ~ decades.

End Product: None (will generate wastewater and flammable gas).

Requirements: Space, waterproof layers, air exhaust installment.

Disadvantages: Air pollution, Large Area, under earth water pollution, Fire explosion.

Prohibited to landfill without treatment in EU

Incineration

Treatment Method: Burn with high temperature.

Treatment Time: several hours.

End Product: None (will generate high toxic ash).

Requirements: Air pollution monitoring about 20~30% of Ashes (treatment required).

Disadvantages: High construction cost, air pollution, CO2 emission, waste of organic matters.

Salt in organic waste will generate Dioxin after burning.

Fast Fermentation

Treatment Method: Microbes decomposition.

Treatment Time: 24~72 Hours + 1~3 month storage before use.

End product: Months of storage required before use.

Requirements: Storage area, cannot treat big size and high salt & oil content wastes.

Disadvantages: Bad smell, space, energy consumption.

Biogas

Treatment Method: Anaerobic bacteria decompose.

Treatment Time: 7~14 Days.

End product: Methane and sludge (treatment required).

Requirement: Highly sealed tanks, large area.

Disadvantages: high construction and maintenance cost, large area for facilities.

Composting-free Technology

Treatment Method: Enzymes reaction.

Treatment Time: 1~3 hours.

End product: High quality organic fertilizer.

Requirement: Enzymes, equipments.

Microbiological

Soil

Biological Organic Composting

-free

Speed, Safety,

Effeteness,

Harmlessness

Complete Use of

Organic Waste

Goal Innovative

The influence of organic waste

The organic wastes are the major raw material of organic fertilizer. When the soil is deficient in organic materials, the fertility will be degraded and the health of crops will surely be affected. Thus, humans must use more chemical fertilizers and pesticides to cultivate.

It is similar that we will have to take medicines when our body is short of nutrition and susceptible to illness. Excessive dose of chemical fertilizers and pesticides may remain on foods. Long-term consumption of these chemical toxins will accumulate in our body and cause various disease.

The natural cycle of organic matter

Above is the ecological cycle chain of nature Please do not ignore the value of organic matter